1-321-802-5889

NSN 5925-01-051-7878

Overload Switch

About this product

Multipole-single actuator type body style, metal case material, single pole, double throw switch contact arrangement, fragility factor: moderately rugged.

Manufacturer part number HB3Z2-57 for national stock number 5925010517878.

Datasheet

  • Product description

    Circuit Breaker NSN 5925-01-051-7878.

  • MPN or Model

    HB3Z2-57

  • Schedule B
    8536.20.0040 (Automatic circuit breakers, for a voltage not exceeding 1, 000 v, nesoi)
  • NMF (National Motor Freight)
    061300 - Circuit Breaker/switch NOI
  • Unit Weight (Est.)
    0.5 lb
  • Thread Pitch Diameters
    +0.3503/+0.3537 inches
  • Body Style
    Multipole-single actuator type
  • Bushing Length
    0.330 inches
  • Body Length
    1.562 inches
  • Body Width
    1.937 inches
  • Case Material
    Metal
  • Center To Center Distance Between Terminals Parallel To Length
    0.906 inches
  • Center To Center Distance Between Terminals Parallel To Width
    0.625 inches
  • Switch Contact Arrangement
    Single pole, double throw
  • Fragility Factor
    Moderately rugged
  • Mounting Surface To Terminal End Distance
    1.828 inches
  • Pole Quantity
    3
  • Arc Quenching Method
    Magnetic blowout
  • Mounting Facility Type And Quantity
    1 threaded bushing w/panel seal
  • Storage Type
    General purpose warehouse
  • Special Handling Feature
    Magnetic
  • Thready Qty Per Inch (tpi)
    32
  • Maximum Continuous Load Current Rating Per Pole
    10.0 amperes ac all locations and 10.0 amperes dc all locations
  • Operating Voltage Type And Rating Per Pole In Volts
    240.0 ac all locations and 50.0 dc all locations
  • Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
    300.0 ac all locations and 500.0 dc all locations
  • Circuit Protection Type
    Overcurrent all locations
  • Trip Release Method
    Magnetic all locations
  • Trip Release Characteristic
    Time delay all locations
  • Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
    115.0 all locations
  • Reset Method
    Manual
  • Main Contact Tripping Mechanism Type
    Trip free
  • Manual Actuator Type And Quantity
    1 toggle
  • Actuator Function
    Trip-reset
  • Actuator Position Designation
    At pole two
  • Auxiliary Switch Function And Quantity
    1 alarm
  • Internal Trip Release Configuration
    Series trip all locations
  • Thread Size
    0.375 inches
  • Switch Location And Position Designation
    Internal at pole three
  • Trip Delay Time In Seconds Per Rated Continuous Current
    0.055 at 200 pct all locations and 1.000 at 200 pct all locations
  • Inclosure Protection Type For Which Designed
    Fungus resistant and hermetically sealed
  • Switch Terminal Type
    Tab, solder lug
  • Switch Current Rating And Type In Amps
    0.5 ac and 0.5 dc
  • Switch Voltage Rating And Type In Volts
    120.0 ac and 50.0 dc
  • Frequency In Hertz
    400.0 all locations
  • Unpackaged Unit Weight
    150.0 grams
  • Test Data Document
    81349-mil-c-39019 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
  • Thread Series Designator
    Unef
  • Terminal Type And Quantity
    6 wire hook
  • Specification Data
    81349-mil-c-39019/6 government specification
Circuit Breaker

A device with means other than fuses for automatically opening the circuit in which it is installed when the current varies from the predetermined value for which the device is set. May include provisions for manual operation. At least one set of contacts must be in series with the actuating element(s). A combination of semiconductor and passive devices may be used in lieu of contacts. For automatically operated items in which the actuating (tripping) element and contacts are not in series, see relay (as modified). For items which are operated both manually and automatically but the actuating elements and contact are not in series, see relay-switch. Excludes circuit breaker box and magneto "breaker" assemblies. See also switch (as modified); and controller.

Mechanic Bill explains Overload Switch

Pricing and Availability

Get a quote for 5925-01-051-7878 circuit breaker
Quantity:
Your Email:
Your Name:
Company Name:
Optional reference:
Phone:
NSN 5925010517878

We do not share, sell, or distribute your information to any third party.
Privacy | Terms

All major credit cards accepted as well as gov. p-cards
Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
HB3Z2-57 Eaton Corp
HE3A2-10-2 Eaton Corp
HE3Z7-57 Eaton Corp
SM333HK10-250VAC60C2 Eaton Corp
M39019/06-248 Military Specifications
MIL-C-39019/6 Military Specifications
AP112-1R6-1-103 Sensata Technologies Maryland, Inc
M39019-6-59 Military Specifications
M39019-6-57 Military Specifications
Stock Check
Availability of this NSN has not been updated recently. Submit the pricing and availbility form above to receive an up to date quote.